You posted while I was writing. Sorry, but I think what I posted is close. ( I am an engineer with a minor in math.)

--EDIT--

Should have read closer. I think what you were asking was the lead required. Based on your numbers that would be 6-7 feet. Actually a little more due to the shot slowing down as it flies.

Last edited by AGS; 10/02/22 12:24 PM.